The following are suggested sub-tree sizes for a full system install. The
numbers include enough extra space to permit you to run a typical home
system that is connected to the internet:
SYSTEM / /usr /var /usr/X11R6
alpha 50M 433M 20M 160MB
amiga 27M 173M 20M 64M
arc 47M 268M 20M 60M
hp300 26M 120M 20M 50M
i386 30M 172M 20M 85M
mac68k 26M 172M 20M 75M
mvme68k 26M 173M 20M 60MB (no Xserver)
sparc 35M 194M 20M 50M
When you are in the disklabel editor, you may choose to make your entire
system have just an 'a' and 'b' partition. The 'a' partition you set up
in disklabel will become your root partition, which should be the sum of
all the 3 main values above (/, /usr, and /var) plus some space for /tmp.
The 'b' partition you set up automatically becomes your system swap
partition -- we recommend a minimum of 32MB but if you have disk to spare
make it at least 64MB.
However, we recommend you use many seperate partitions so that users cannot
fill up your important partitions as easily, thus causing nasty denial of
service problems. If you are extra cautious, you will make at least the
following seperate partitions: / swap /usr /var /tmp /var/tmp /home.